Hello World service orchestration

Hello World's execution in BPEL

WSDL vocabulary: operation is a single message exchange.

Either a request-response or a one-way.
A one-way is a single message being sent.
A request-response is at least a request and at least a response. Eventually fault messages can be sent back instead of the response.

Consequence:

On the client pool: a single bpel:invoke where the operation is well know.

On the service pool: a receive followed by a reply.

Hello World has schizophrenia

Make sure the various workflows are well defined.

Decide what needs to be visualized.

Investigate where interfaces are defined and where they will be generated.